Quick detachable hose coupling



Feb. 2, 1965 w. H. DZIURA QUICK DETACHABLE HOSE COUPLING 7 Filed Feb. 28, 1962 v I I, I I I,

INVENTOR WaH'er H. Dziura MFMW ATTORNEY United States Patent a 3,1; 8,333 QUICK EETACHABLE HiI-SE CGUPLENG Waiter H. Dziura, Naugatucir, Conn., assignor to Scot ill Manufacturing Company, lilaterbury, Conn, 11 corporation of Connecticut 7 Filed Feb. 28, 1%2, Ser. No. 176,279 3 Claims. (Cl. 235-55) This invention relates to quick detachable hose couplings.

Couplings having segmental threaded partshave heretofore been proposed, but they are relatively difiicult to manipulate and expensive to make. Such segments have been made as separat e pieces and .the means forcontrolling and confinin" such pieces render the coupling objectionable for most uses.

The object of my invention, therefore, is to'provide a simple hose coupling which has flexible fingers integrally connected to a' collar or'base which swivels] on a part permanently attached to the hose, such'fingers providing internally threaded segments to adapt the same for engagement with a complementary male fitting. Such fingers are thus always held in the proper relationship without the need for such things as grooves or flanges employed in other couplings to keep the segments in line.

The female portion of my improved coupling consists essentially of only two parts: (1) a piece of pliable plastic consisting of a plurality, and preferably, four internally threaded fingers or segments extending from a collar or base adapted to swivel on the usual flanged body member permanently secured to the hose; and (2) asecond piece fully appear.

In the drawing:

ice

adapted to bear against the inner surface {of the flange 16. The base H is swivelly connected to the body 13 by means of a raised rib 22 formed outwardly of said body and confining said base between the rib 22 and the flange 16.

Inorder to .coniine'the fingers against outward flexing, I provide the manipulating sleeve 15, made of rigid material which is here shown as a metal shell, butifdesired, it

FIG. l'is a side view of a quick detachable coupling embodying my invention and showing it attachedtoa faucet;

alized and on a larger scale; 7

FIG; 3 is a plan view of the'same;

same.

may be made from one of the hard plastic materials.

The sleeve 15 is formed at its inner end with an inward flange 23 that is positioned inwardly of the clutch base 19 to prevent said sleevefiom being removed outwardly from the coupling. Y Y

The wall of the sleeve 15 is formed with a series of longitudinal ribs 24 of concavo-convexo shape in crosssection and which extends, the full length of said sleeve. The ribs 24 thus provide a like number of, flutes or channels 25 on the inner surface of the sleeve 15 that are adapted to slidably interfit with a series of complemental ribs 26 formed on the outer surface of the segmental fingers 2t? and tl1e'fbasep19. The ribs 24 on the outer surface of the sleevelS will serve to enhance the gripping surface of said sleeve to facilitate the manipulation of coupling and held in place by being positioned between segmental fingers 20'. In order to provide a means to material. .The retention member 28 is provided with an annulus 29 of U-shape in cross-section that is adapted.

to fit about the sleeve flange 23 and carried thereby. The v retention member 28 also has a flexible frictional gripping flange 39 normally lying in a fiat plane perpendicular The flange 30 is provided to the axis of thecoupling.

' with a central opening 31 of less diameter than the outside FIGL4 is a partially sectionalized side view of the coupling as it appears partially assembled to a faucet thread; and,

' FIG. 5 is a perspective view of the plastic member having the flexible fingers.

" The drawing shows my quick detachable coupling con-.

meeting a hose 10 to a male fitting such as a conventional faucet 11 having the usual threaded end 12. The coupling consists essentiallyof a body member 13, a molded 13 to said hose. The body neck 17-and insert ni leijis may be formed with complementalgrooves and ridges forsqueezing the hose material therebetweeu to increase the holding eifect of the coupling to the hose.

The molded member 14 consists of a circular base 19 and a seriesoffingers 20 integral withthe outerperiphery I of said base and extending upwardly therefrom. ,Preferably, four such-fingers are shown in'the drawing, equally spaced about the base 19, but a different numberof fingers may be used, to better suit a'particular application of the coupling. Each of the fingers 20 is formed with internal threads 21 (interrupted) for engagement with the comp le mental male threads on the faucet 11. g

The circular base 19 surrounds the body 13 and is diameter of. the hose 10. When the sleeve 15 is in assembled position, the flexible flange 39 will be flexed to a downward conicalposition such as shown in FIG. 1.

When-the sleeve -15 is moved downwardly to separatefromthecoupling, the flange 36 will invert to an upward I i conicalposition as shown in dotted outline in the same figure with said flange always maintaining a frictional f grip upon the hose 10, regardless of the position of said flange.

In the operation of my coupling member,-'it'is tobe understood that the sleeve 15' will be normally carried in" a locked position about the segmental fingers 20. 'When it is desired-to make a quick connection with any faucet or the like, it is first necessary to move the sleeve 15 down 'wardly to a position such as shown in dotted outline in FIG. 2 orthe full line in FIG. 4. This will lea ve the fingers zones tojflex inwardly and outwardly. The conpling-will then be aligned with the threads 12 of a male fitting and then forced axially upwardly asfar as can readily be done by hand. During this upward motion, the fingers'ltl will. flex outwardly and inwardly as the arbitrary position whereupon the manipulating sleeve 15 will he slipped upwardly into position with the inner flutes 3 ZS -engaging'and nesting in the finger ribs 26.

In this axial assembly of the coupling and the inter-, locking sleeve 1;5, the connection, between thecoupling and the faucetmay not betight whereupon the operator will turnthe sleeve 15 in a right-hand direction to comv v plete the threading of the coupling uponthe faucet to t a-reared Feb. 2, recs The usual sealing washer 27 is carried by the preventzthe manipulating sleeve 15 fro m being lost from the coupling when: removed for assembly purposes, provision ismade of a retention memberv 23 madev of'relativelyfl'exible pliable a leak-proof position. In removing the coupling, it is'only necessary to remove the sleeve 15 downwardly from the coupling and then by gripping the hose below the coupling and giving it a downward pull with a slight biasing action,

the; flexible fingers will readily detach from the threads ofthe faucet and disconnect the coupling therefrom.

WhileI haveshown and describedbuta single embodiment of theinvention, it'will be understood that various modifications may be resorted to without departing from the spirit of' the invention. t V

What Iclaimis: 1. A quick detachable hose coupling comprising i (a) a b'ody member permanently secured to thee nd of the hose and having a'n outwardly extending radial flange at'its'end; l

(b) a molded member-of pliable plastic material having a circular basesurrounding said body and adapted to bearxagainst the inner surface of said flange;

(0) a plurality of fingers integral with said base providing internallyjthreaded segments to adapt the vsame for engagement ;witl1 a complementary male fitting, said fingers being'outwardly flexibleto permit the same to be forcibly telescoped on to or away from such male fitting; I

(d) a-slee've of rigid material adapted to be telesc'oped 2 around said fingers to confine them against outward fiexingeand,

wherein means isiprovided for frictionally retaining said sleeve upon said hose when said sleeve is removed from the coupling. p 7 References Cited by the Examiner UNITED STATES PATENTS 2850s 1 1907 Great Britain. 737,73; 9 55 Great Britain.

a ,CARL w. TOM'LIN, Pr z' rnaryExa ritinerl 

1. A QUICK DETACHABLE HOSE COUPLING COMPRISING (A) A BODY MEMBER PERMANENTLY SECURED TO THE END OF THE HOSE AND HAVING AN OUTWARDLY EXTENDING RADIAL FLANGE AT ITS END; (B) A MOLDED MEMBER OF PLIABLE PLASTIC MATERIAL HAVING A CIRCULAR BASE SURROUNDING SAID BODY AND ADAPTED TO BEAR AGAINST THE INNER SURFACE OF SAID FLANGE; (C) A PLURALITY OF FINGERS INTEGRAL WITH SAID BASE PROVIDING INTERNALLY THREADED SEGMENTS TO ADAPT THE SAME FOR ENGAGEMENT WITH A COMPLEMENTARY MALE FITTING, SAID FINGERS BEING OUTWARDLY FLEXIBLE TO PERMIT THE SAME TO BE FORCIBLY TELESCOPED ON TO OR AWAY FROM SUCH MALE FITTING; (D) A SLEEVE OF RIGID MATERIAL ADAPTED TO BE TELESCOPED AROUND SAID FINGERS TO CONFINE THEM AGAINST OUTWARD FLEXING; AND, (E) CO-OPERATING MEANS ON SAID SLEEVE AND FINGERS TO PREVENT RELATIVE ROTATION WHILE PERMITTING RELATIVE SLIDING MOVEMENT. 